Ultrafast imaging of surface-exclusive carrier dynamics in silicon
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Physics"
DOI: 10.1063/1.5074198
Abstract: Understanding the dynamics of charge carriers at the semiconductor surfaces and interfaces is fundamental to the further development of photocatalytic, photovoltaic, and optoelectronic devices. Here, we study the surface photovoltage (SPV) dynamics in intrinsic and… read more here.
Keywords: ultrafast imaging; surface; dynamics silicon; carrier dynamics ... See more keywords
Ultrafast Imaging of Molecular Chirality with Photoelectron Vortices.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.233201
Abstract: Ultrafast imaging of molecular chirality is a key step toward the dream of imaging and interpreting electronic dynamics in complex and biologically relevant molecules. Here, we propose a new ultrafast chiral phenomenon exploiting recent advances… read more here.
Keywords: molecular chirality; ultrafast imaging; imaging molecular; photoelectron vortices ... See more keywords
Ultrafast Imaging With Optical Encoding and Compressive Sensing
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2018.2880816
Abstract: Serial time-encoded amplified microscopy (STEAM) is an emerging technology, which enables an ultrafast phenomena to be captured at GHz scan rate. The tradeoff between high imaging speed and high spatial resolution remains a problem where… read more here.
Keywords: scan rate; microscopy; imaging optical; compressive sensing ... See more keywords
Ultrafast Ultrasound Imaging Using Combined Transmissions With Cross-Coherence-Based Reconstruction
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Medical Imaging"
DOI: 10.1109/tmi.2017.2736423
Abstract: Plane-wave-based ultrafast imaging has become the prevalent technique for non-conventional ultrasound imaging. The image quality, especially in terms of the suppression of artifacts, is generally compromised by reducing the number of transmissions for a higher… read more here.
Keywords: ultrafast imaging; ultrasound imaging; lobe; using combined ... See more keywords
Ultrafast imaging on the formation of periodic ripples on a Si surface with a prefabricated nanogroove induced by a single femtosecond laser pulse.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.006302
Abstract: This paper reports the ultrafast imaging on the formation of periodic surface ripples induced by a single 800 nm, 50 fs laser pulse. The evolution process is observed on a Si surface with a prefabricated… read more here.
Keywords: periodic ripples; ultrafast imaging; formation periodic; surface ... See more keywords